Pipe vise



Dec. 23, 1930.

W. W. VOSPER PIPE VISE Filed Ot. 3, 1927 31a/manioc M nl l {Il} Y i Mazzei-E15... .W////////// u... lt

Patented Dec. 23, 1930 Unirse "STATES 1,785,8a/il WILLIAM W. vosrnia,` Aor roLnnQ-onro, AssIGNon. 'fro THE roLnno rien rnnnanrns MACHINE conrANY, or '.roLEno, onro, A oonronn'rion or onio PIPE VISE Application filed Octoberl 3, 1527. Serial No. 223,626.

clamping apparatus.r

This invention has utility whenlincorpo-V rated in anchoring against rotation of pipe, especially for cutting, threading, or assem bling operations thereon.

Referring to the drawings: w

Fig'. 1 is a sideelevation oi an embodiment of the invention as pipe vise;

Fig. 2 is a fragmentary view from the left of Fig. 1;

Fig.V 3 is a section on the line TIL-III, Fig. 2;

Fig. 4 is a section on the line lV-IV, Fig. 2;

Fig. 5 is a section on the line V-V, Fig. 4, and

Fig. 6 is a fragmentary side view of the eye bolt and its mounting.

Legs 1, 1, are shown as sustaining a snpport comprising web 2 and side flangesv 3, 4. The web 2 and side flanges 3, 4, together constitute a support or table as sustained by the j legs 1. This web portion 2, between 'the ilanges 3, 4, is provided with open work re-V inforcements 5. These reinforcements 5 are preferably anchored by welds 6 into xed position with the support proper 2, 3, 4. I The support 2, at the regions of these reinforceme'nts 5, is provided with dowel pins 7 and bolts 8, 9. The pins 7 extend into seats 10 of jaws 11. Additionally these jaws ll have seats12 into which the bolts 8,9.v extend with threaded engagement for positioning the aws against shifting as to the support 2.

The jaws 11 are shown in adjacent pairs, opposingeach other, with clearance therebetween. i

Adjacent the bolts 8, the support 2 has 40, opening 13 through which extends bolt 14 having eye 15 upwardly therefrom engaging v terminal link or cha-in 16. This eye bolt 14, l5, as extending through the opening 13, Y passes through rocking yoke or washer 17 to .45 be engaged bynut-forming hand wheel 18.

This washer 17 has trunnions 19 extending into brackets 20, anchored bythe bolts 8. There is thus formed in the assembly of this chain 16 with the support 2, 3, 4, 5, an adjustable rocking anchor. The washer 17 may rock toallow the chain 16 to take a desired direction about the object as mounted in the vise; Y

In adapting this structureA to large size pipe, one and one-quarter (1%)` inch chain S3 may be used with the range of pipe sayifrom four and one-halt (41/2) inches to twelve. (12) inches in diameter. The free end of the chain rising from the eye bolt 14, 15, passing upward throughthe opening 13, may wrap about pipe 21 and a link of the chain may be inserted in seat 22 between the `cheeks 23. From vthese cheeks 23 there is cylindrical 1` extension 24 entering eccentric bearing 25 barrel or cylindrical member 26. (Fig. 4.) "3

This member 26 is rotatably mounted in main bearing 27, anchored by-wel'ding 28 with Hangs 4 of the support. This anchoring is in the vicinity ota reinforcement 5.

The barrel26 carries tapered diametrically extending l opening 29 into which 'may be thrust radially extending 4bar 30 as an Voperating lever..

In the assembly of this take-upy device for the free end of the chain, the cylindrical eX- tension 24 from the chain link engaging seat 22, is provided with groove 31 thereahout into which may be thrust pin 32 before the barrel 26 is inserted in the bearing 27.V vWith the assemblyfof the seat and barrel in the bearing 27 the pin 32 is held from removal. This barrel 26, adjacent the end of the bearing 27 remote from the seat 22 is provide-d with groove 33. Screws 34 (Fig. 5)'may anchor plate 35'in`po'sition with the bearing 27 and this plate, coacting with the groove 33, therefby forms a detachable assemblyior this takeup or grippingv effecting device.

In the region of eccentricityshown, the bar 30 may be in depending position when a link of the chain 16 is inserted in the seat 22. If the slack inthe chain 16, at the particular linkrange, be'rather'excessive, hand wheel 18 may be operated .to `reduce such slack.

The bl' Swinging fthe lever, 30 upwardto- Fifi ward the object 21,'an effective gripping ot the pipe 21 results. Should the adjustineat besuch that the lever or bar 30 maynot be swung up fully and it isdesired to swing such clear to the pipe 21, the hand wheel f18 vmay lm be slacked olf a little, with the bar down, and then the bar swung up. The location of the legs l directly to oppose any wear or strain of the gripping,r operation is a feat-ure of stability and strength against distortion.

rl`he device l this disclosure is one wherein a light weight, simple device may bring' about an effV ctive holding action against rotation. rlhe adjustments are of a considerable range, and may be quickly taken. rlhe elements are simple and of a degree of strength adequate for even pipe of z@great size relative to the device. rlhe gripping action may be taken quickly and as quickly released, the latter occurring by merely swinging' the arm or lever VE30 downward or oppositely to the gripping' direction.

that is claimed and it is desired to secure by Letters Patent is:

l. bench type support embodying a channel, a reinforcement in the channel, jaws opposing); the reinforcement and carried by the support on the oposite side of the channel from the reinforcement, a chain anchored with the reinforcement and havin;y a free end extending' therefrom to pass about an object for clampiirgf the object toi vard the jaws, said free end being' connectable to the support, and means for shortening the effective length of the chain for effecting clamping;` of the ob ject toward the jaws.

2; A bench type support embodying a channel, reinforcements in the channel, four jaws, anchoring means assembling the reinforcement with the jaws and positioning the jaws in two opposing pairs with the channel of the support opposite thereto, and a chain clamp coacting with the support, said clamp including a lever having' a chain engagingA fulcrum rockable with the lever for clamping; an object in said jaws.

3. A bench type supportembodying a channel, reinforcements, two pairs of jaws, anchoring' means assembling the reinforcements with the jaws for positioning the aws with the support, an bolt anchored with said reinforcements, and a chain clamp hav ing a free end extending' from the eye bolt to pass about an object for clamping the ol ject toward the jaws, and adjusting' means for shortening the effective length of the chain, said means including a lever having a chain engaging' fulcrum roclable with the lever for effecting clamping of the object toward the jaws.

d. A bench type support embodying a channel, reinforcements, two pairs of a-ws opposing the reinforcements, anchoring` means for positioning;` the jaws with the support, an adjustable rockably mounted eye bolt an chored with said reinforcements, a chain clamp having free end extending from the eye bolt to pass about an object, a chain anchoring' seat for the chain free end, a barrel in which the seat is freely rotatable and eccentric of which barrel the seat is mounted, and a lever mounted on said barrel as a fulcrum.

5. A chain vise take-up comprising a chain seat having a, cylindrical extension transversely of the chain direction as determined by the chain seat, a cylindrical barrel in which said extension is freely rotatable and eccentrically mounted, a bearing for the barrel, and a bar for 'locking said barrel in the bearing'.

6. A chain vise comprising jaw means, a bench type support for sustaining the means, an operator for the vise including a rock shaft, a sustaining leg for the support, and a mountingl for the shaft fixed with said leg'.

7. A chain vise comprising jaw means, a chain, anchoring.,y means for an end of the chain with said jaw means, and a sustaining leg for the jaw means including a bracket assembling` the lei;- with the jaw means and having a take-up bearing for the vise chain.

ln witness whereof I affix my signature.

wnmnin w. vosrnn. 

